1 files changed, 1 insertions, 1 deletions
diff --git a/gc.c b/gc.c
index f25f9cd48d..b79dcac481 100644
--- a/gc.c
+++ b/gc.c
@@ -504,7 +504,7 @@ rb_gc_set_params(void)
 /* 2KB */
 /*#define HEAP_SIZE 0x800 */
 
-#define HEAP_OBJ_LIMIT (HEAP_SIZE / sizeof(struct RVALUE))
+#define HEAP_OBJ_LIMIT (HEAP_SIZE / (unsigned int)sizeof(struct RVALUE))
 
 extern st_table *rb_class_tbl;